Evaluate Expression while debugging

Can we add feature to evaluate expression while debugging an application?

Description:
Currently in Debugger window we have "In Use", "Locals" etc tabs where we can see the values from current context. Apart from this we may add new tab i.e. "Immediate Window" where we can write an expression and it will get evaluated on button click. Please refer attached screenshot for more details.

This feature will be very useful for developers to troubleshoot an application while debugging.

There's a workaround, an ugly one, but works. Whenever you stop on a breakpoint in debugger mode, add an aggregate to a function that returns any result. Then add a new column with an expression (the one you need to evaluate), and there it is. You can see the results. This means that an evaluation method would not be that difficult to implement. By the way, i'm using version 9.0.1.55 of service studio. Don't know if it's already implemented so far in newer versions.